Average Bench: 121% (150th of 1016)

Based on 8,169 user benchmarks.  Models: NVMe PM951 NVMe SAMSU, PM951 NVMe SAMSUNG 256GB

Outstanding average bench

The Samsung PM951 NVMe PCIe M.2 256GB averaged 21.5% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the Samsung PM951 NVMe PCIe M.2 256GB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Mixed IO Speed 342MB/s
Avg. 4K-64Thread Read Speed 797MB/s

Poor consistency

The range of scores (95th - 5th percentile) for the Samsung PM951 NVMe PCIe M.2 256GB is 65.7%. This is a particularly wide range which indicates that the Samsung PM951 NVMe PCIe M.2 256GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sustained Write Speed 224MB/s
Avg. Sequential Write Speed 257MB/s
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Average Bench

(Based on 8,169 samples)
Min Avg Max
617 Read 934 1,042
106 Write 257 308
160 Mixed 280 342
78.4 SusWrite 224 298
92.5% 424 MB/s
Min Avg Max
17.5 4K Read 40.8 41.9
42.5 4K Write 110 155
13.3 4K Mixed 31.4 39.6
160% 60.8 MB/s
Min Avg Max
183 DQ Read 797 988
114 DQ Write 258 313
102 DQ Mixed 342 424
301% 466 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
26GB free (System drive)
Firmware: BXV7 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 305 290 281 203 112 87 MB/s
Read 1,030
Write 312
Mixed 341
SusWrite 213
104% 474 MB/s
4K Read 41.5
4K Write 159
4K Mixed 41.3
200% 80.6 MB/s
DQ Read 967
DQ Write 296
DQ Mixed 423
366% 562 MB/s
235GB free
Firmware: BXV77D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 295 293 293 293 293 292 MB/s
Read 988
Write 299
Mixed 371
SusWrite 293
107% 488 MB/s
4K Read 41.5
4K Write 91.2
4K Mixed 38
160% 56.9 MB/s
DQ Read 985
DQ Write 305
DQ Mixed 427
372% 573 MB/s
55GB free (System drive)
Firmware: BXV77D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 219 203 193 192 184 174 MB/s
Read 944
Write 268
Mixed 280
SusWrite 194
92% 421 MB/s
4K Read 38.1
4K Write 132
4K Mixed 35.7
173% 68.6 MB/s
DQ Read 955
DQ Write 259
DQ Mixed 368
333% 527 MB/s
24GB free (System drive)
Firmware: BXV77D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 114 111 102 101 100 99 MB/s
Read 874
Write 131
Mixed 223
SusWrite 104
72% 333 MB/s
4K Read 29.4
4K Write 92.8
4K Mixed 21.2
121% 47.8 MB/s
DQ Read 915
DQ Write 168
DQ Mixed 274
270% 452 MB/s
215GB free (System drive)
Firmware: 7D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 291 290 285 291 299 297 MB/s
Read 625
Write 306
Mixed 268
SusWrite 292
83% 373 MB/s
4K Read 22.3
4K Write 57.7
4K Mixed 20.6
91% 33.5 MB/s
DQ Read 572
DQ Write 308
DQ Mixed 383
300% 421 MB/s
8,169 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 21,680,567 SSDs tested.

Typical PM951 NVMe PCIe M.2 256GB Builds (Compare 4,398 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 14%
Tree trunk
Desktop
Desktop 58%
Gunboat
Workstation
Workstation 39%
Jet ski

System: Alienware 17 R3

EDIT WITH CUSTOM PC BUILDER

Popular PM951 NVMe PCIe M.2 256GB systems:

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Solid State Drive Rankings (Price vs Performance) January 2020 SSD Rankings.

Welcome to our 2.5" and M.2 SSD comparison. We calculate effective speed for both SATA and NVMe drives based on real world performance then adjust by current prices per GB to yield a value for money rating. Our calculated values are checked against thousands of individual user ratings. The customizable table below combines these factors to bring you the definitive list of top SSDs. [SSDrivePro]

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Group Test Results

  • Best user rated - User sentiment trumps benchmarks for this comparison.
  • Best value for money - Value for money is based on real world performance.
  • Fastest real world speed - Real World Speed measures performance for typical consumers.

 Comments

Added n/a ago.

Excellent

2 years ago.

Fast as heck...at half speed I might add!


Your
opinion?
1016 Drives (Compared) Thousands of user benchmarks compiled into one comparison list.

See how consistently different SSDs perform with varying real world conditions. The charts also illustrate overall performance, popularity and rank.

 Frequently Asked Questions

 Best User Rated

The Best.
CPUGPUSSD
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Intel Core i5-9400F $155Nvidia GTX 1650S (Super) $170Samsung 850 Evo 120GB $78
Intel Core i7-9700K $370Nvidia RTX 2060 $340Samsung 850 Pro 512GB $204
HDDRAMUSB
Seagate Barracuda 1TB (2016) $37Corsair Vengeance LPX DDR4 3200 C16 2x8GB $73SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $40Corsair Vengeance LPX DDR4 3000 C15 2x8GB $63SanDisk Extreme 32GB $46
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $643SanDisk Ultra Fit 32GB $16
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